PSYC 4070 : Test 2 Review
Document Summary
Discussion on piaget same 4 stages in order invariant sequence stages differ qualitatively. Go up a stage only when mature enough, & had the right experiences. What are the right experiences: thinks most normal environments will allow you to get what you need (set of experiences: may differ per person) concrete vs. formal operations. Might be different for babies, most normal environments suffice. Without relevant experiences can"t reach highest stage. Preschoolers still learning motor skills (e. g. eating/ dressing) & how to uses paper and pencil. Brains haven"t baked enough to start regular school. Neurons transmit electrochemical messages when dendrites are stimulated by other neurons synaptic gap: five millionths of an inch, neurotransmitters released into gap excite/ inhibit next neuron. Most psychoactive drugs mimic neurotransmitters (ex: paxel: serotonin reuptake inhibitor ; antidepressant) learning- alters synaptic efficiency- increases nerve impulse speed. Major brain growth spurts particularly in cortex (ex: cortical dendrites increase (5x) in 1st. Neurogenesis and migration doesn"t end brain growth.
